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Finding the Fourth Proportional to 33,993.62, 50,990.46 and 12,928.82

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Solution

The fourth proportional to 33,993.62, 50,990.46 and 12,928.82 is: 19,393.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,993.62 : 50,990.46 = 12,928.82 : x
  2. Step 2: Convert to fraction form
    33,993.62/50,990.46 = 12,928.82/x
  3. Step 3: Cross multiply
    33,993.62x = 50,990.46 × 12,928.82
  4. Step 4: Simplify right side
    33,993.62x = 659,246,248.35
  5. Step 5: Solve for x
    x = 659,246,248.35/33,993.62
  6. Step 6: Final answer
    x = 19,393.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.